See the domains Google treats as sources for entity facts.
Trusted sources for entity facts
Dataset: 62,202 isReference domains |
entities
Proprietary analysis of Google's entity validation patterns across the Knowledge Graph.
Where these domains come from
1,738,093
Domains monitored
62,202
isReference domains
3.58% qualify
23,295,240
URLs monitored
76,004,304
Entities tracked
💡 Even Small Niche Domains Have isReference Authority
Examples from our dataset (December 2025):
| kalicube.com | 21 entities |
| searchengineland.com | 11 entities |
| jasonbarnard.com | 86 entities |
| searchenginejournal.com | 270 entities |
| entrepreneur.com | 1,292 entities |
| forbes.com | 2,823 entities |
Your niche-specific domains may have similar authority in your category.
Top 100 isReference Domains for All Entity Types
| Rank | Domain | Entity Count |
|---|---|---|
| 1 | wikipedia.org | 1,008,482 |
| 2 | linkedin.com | 154,094 |
| 3 | instagram.com | 120,447 |
| 4 | x.com | 68,680 |
| 5 | facebook.com | 64,005 |
| 6 | legacy.com | 62,168 |
| 7 | namu.wiki | 36,415 |
| 8 | google.com | 32,721 |
| 9 | youtube.com | 29,635 |
| 10 | crunchbase.com | 25,082 |
| 11 | britannica.com | 24,966 |
| 12 | dictionary.com | 24,075 |
| 13 | reddit.com | 20,739 |
| 14 | amazon.com | 19,138 |
| 15 | fandom.com | 16,627 |
| 16 | letterboxd.com | 12,944 |
| 17 | microsoft.com | 11,151 |
| 18 | apple.com | 10,095 |
| 19 | wiktionary.org | 9,967 |
| 20 | rottentomatoes.com | 8,704 |
| 21 | justwatch.com | 7,526 |
| 22 | imdb.com | 7,509 |
| 23 | yahoo.com | 6,728 |
| 24 | cambridge.org | 6,444 |
| 25 | shopee.co.id | 6,044 |
| 26 | indeed.com | 5,962 |
| 27 | espn.com | 5,927 |
| 28 | nhl.com | 5,696 |
| 29 | tiktok.com | 5,457 |
| 30 | quora.com | 5,398 |
| 31 | genius.com | 4,999 |
| 32 | epicgames.com | 4,837 |
| 33 | hbomax.com | 4,826 |
| 34 | billboard.com | 4,581 |
| 35 | shopee.ph | 4,537 |
| 36 | vocabulary.com | 4,262 |
| 37 | inc.com | 4,244 |
| 38 | forbes.com | 4,064 |
| 39 | wikiwand.com | 4,057 |
| 40 | history.com | 3,923 |
| 41 | dictionary.net | 3,849 |
| 42 | time.is | 3,842 |
| 43 | bing.com | 3,720 |
| 44 | thesaurus.com | 3,672 |
| 45 | pornhub.com | 3,636 |
| 46 | deel.com | 3,566 |
| 47 | bbc.com | 3,548 |
| 48 | github.com | 3,537 |
| 49 | nfl.com | 3,498 |
| 50 | loc.gov | 3,491 |
| 51 | merriam-webster.com | 3,379 |
| 52 | nintendo.com | 3,365 |
| 53 | google.co.il | 3,359 |
| 54 | temu.com | 3,310 |
| 55 | bloomberg.com | 3,316 |
| 56 | independent.co.uk | 3,307 |
| 57 | bbc.co.uk | 3,274 |
| 58 | house.gov | 3,204 |
| 59 | gov.uk | 3,134 |
| 60 | spotify.com | 3,038 |
| 61 | mubi.com | 2,924 |
| 62 | nba.com | 2,901 |
| 63 | soundcloud.com | 2,899 |
| 64 | goodreads.com | 2,820 |
| 65 | trustpilot.com | 2,802 |
| 66 | entrepreneur.com | 2,783 |
| 67 | radiofrance.fr | 2,714 |
| 68 | uk.com | 2,706 |
| 69 | nih.gov | 2,697 |
| 70 | shopee.sg | 2,630 |
| 71 | wordpress.org | 2,616 |
| 72 | amazon.co.uk | 2,606 |
| 73 | researchgate.net | 2,602 |
| 74 | theguardian.com | 2,578 |
| 75 | fifa.com | 2,561 |
| 76 | delta.com | 2,529 |
| 77 | steampowered.com | 2,506 |
| 78 | reuters.com | 2,489 |
| 79 | google.com.br | 2,483 |
| 80 | ms-ci.co.il | 2,468 |
| 81 | usnews.com | 2,442 |
| 82 | famousbirthdays.com | 2,426 |
| 83 | aliexpress.com | 2,340 |
| 84 | stackoverflow.com | 2,342 |
| 85 | indigo.ca | 2,302 |
| 86 | public.com | 2,290 |
| 87 | ebay.com | 2,264 |
| 88 | the-independent.com | 2,266 |
| 89 | nsw.gov.au | 2,262 |
| 90 | zhihu.com | 2,251 |
| 91 | grammy.com | 2,244 |
| 92 | xhamster.com | 2,241 |
| 93 | upenn.edu | 2,211 |
| 94 | pinterest.com | 2,213 |
| 95 | hosting.com | 2,205 |
| 96 | one-line.com | 2,206 |
| 97 | gog.com | 2,192 |
| 98 | watch.plex.tv | 2,180 |
| 99 | nytimes.com | 2,110 |
| 100 | nature.com | 2,102 |
| 101+ | 62,102 additional niche-specific domains in full dataset covering 73,969,700 additional entities | |
Why This Data Matters
Google validates entity information through patterns of corroborating mentions across trusted domains. This list shows where Google recognizes all entity types - but here's the catch: entity authority is extremely niche-specific.
Entity Validation at Scale
Google's Knowledge Graph requires consistent entity recognition across validated domains.
- Only 3.58% of domains (62,202 out of 1,738,093) qualify as isReference
- Brands typically need ~30 entity-validated url for a stable Knowledge Panel
- Each niche has unique entity authority patterns
- Generic "authority lists" miss 95%+ of niche-specific opportunities
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